1200110112000 has 216 divisors, whose sum is σ = 4318347251400. Its totient is φ = 320029286400.

The previous prime is 1200110111999. The next prime is 1200110112053. The reversal of 1200110112000 is 2110110021.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8484620544 + 1191625491456 = 92112^2 + 1091616^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1795525 + ... + 2371524.

Almost surely, 2^{1200110112000} is an apocalyptic number.

1200110112000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200110112000 is an abundant number, since it is smaller than the sum of its proper divisors (3118237139400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1200110112000 is an equidigital number, since it uses as much as digits as its factorization.

1200110112000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4167086 (or 4167059 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1200110112000 its reverse (2110110021), we get a palindrome (1202220222021).

The spelling of 1200110112000 in words is "one trillion, two hundred billion, one hundred ten million, one hundred twelve thousand".